Both extra nuclear as well as nuclear materials are involved in transmission of hereditarty information as

Options

A. Mitochondria and plastids are having DNA
B. Both cytoplasm and nuclear material are eually envolved in heredity
C. Each type of organisms have particular mitochondria or plastids
D. Some cells are prokaryotic

Answer

### Step-by-Step Solution

1. **Understanding Hereditary Information**: Hereditary information is transmitted through genetic material, which can be found in both nuclear and extra-nuclear components.

2. **Nuclear Material**: The nuclear material refers to the DNA contained within the nucleus of eukaryotic cells. This DNA is responsible for the majority of genetic inheritance.

3. **Extra-Nuclear Material**: Extra-nuclear materials, such as mitochondrial DNA and plastid DNA (like chloroplast DNA), are also involved in the transmission of hereditary information. These organelles contain their own DNA, which is inherited differently than nuclear DNA.

4. **Cytoplasmic Inheritance**: This term refers to the inheritance of genes located in the cytoplasm, particularly those found in mitochondria and plastids. In many organisms, mitochondrial DNA is inherited maternally, meaning it comes from the mother’s egg cell.

5. **Role of Mitochondria and Plastids**: Mitochondria are known for their role in energy production and contain their own DNA (mtDNA). Similarly, plastids, such as chloroplasts, are involved in photosynthesis and also contain their own DNA.

6. **Conclusion**: Both nuclear and extra-nuclear materials contribute to hereditary information. Mitochondria and plastids are key examples of extra-nuclear materials that carry DNA and play a role in inheritance.

### Final Answer
Both extra-nuclear (mitochondria and plastids) and nuclear materials are involved in the transmission of hereditary information as they contain DNA.

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